Laser phase modulation spectrum with 25 frequency bands is generated by modulating a single frequency laser with two cascaded phase modulators (PMs) with driving voltage amplitudes at 3.2 V and 7.8 V, respectively. And the time de
In this paper, the shape of the object is reconstructed based on the fiber Bragg grating (FBG) flexible sensor encapsulated by polydimethylsiloxane (PDMS) material, and the influence of the number and layout of the sensors on the
A system of fiber Bragg grating (FBG) temperature sensing demodulation based on light power detection is proposed in this paper. Compared with the traditional demodulation method based on wavelength scanning, light power detection
In this letter, a titanium aluminum carbide (Ti3AlC2) coated D-shaped fiber is proposed and demonstrated as a new saturable absorber (SA) for Q-switched laser pulse generation. In preparing the SA, the Ti3AlC2 powder is dispersed
Aiming at the problem of high requirement for the signal generator in the Brillouin optical time-domain analysis (BOTDA) system, a quarter of the Brillouin frequency shift (BFS) of modulation is proposed to reduce the required ban
The different compositions of the ternary alloyed CdSexS1-x quantum dots (QDs) and CdSexS1-x/ZnS core/shell quantum dots (CSQDs) have been synthesized by the chemical routes. The radii of these QDs were determined by transmission
Simultaneously improving the communication speed and equalizing the nonlinear frequency response are still challenging for tunnel visible light communication (TVLC) system. Here, we propose and numerically investigate a frequency
Accurate measurement of the thin liquid film thickness in pipes is the foundation for studying the characteristics of the film. In this paper, an interferometry-based measurement of liquid film thickness in transparent pipes is de
The identification of rice seeds is crucial for agriculture production. An inverse Fourier transform (IFT) method based on laser-induced breakdown spectroscopy (LIBS) is proposed to identify five kinds of rice seeds. The LIBS data
Lithium-ion battery has attracted more and more attention under the background of energy crisis and environmental pollution, and safety issues have become the focus of attention. A new detection method is proposed in this paper to
In the vehicle to vehicle (V2V) communication based on optical camera communication (OCC) system, how to achieve high reliability and low latency communication is still a problem. In this paper, we propose a lightweight light-emit